Every time you flip a coin its a 50% chance of it coming up one or the other. Does not matter how many times it comes up heads or tails. This is trying to find patterns where there are none. There is such a thing as random. When its not random you try to not create patterns and that is not random.
Okay I'll explain it as simply as possible. If you flip a coin one time, there is a 50% chance of heads or tails. As I have said, the more times it happens, the more an equalizing tries to be forced. So if you got heads 9 times in a row, you still think 50% chance of getting heads again. But the formula is (1/2)^10 There is a .09% chance of getting heads 10 times in a row. There is a .19% chance of heads 9 times in a row. 1 head in a row, 50% chance, 2 = 25% 3=12.5% 4=6.25 5=3.12, etc. So if heads actually came up 9 times in a row, you know there is .09% chance of it happening 10 times in a row so even though a single flip is 50%, there is .09% chance that it would happen 10 times in a row and higher likely hood a tails will show up to break that streak. And that's called having your luck run out, if a gambler got something against bad odds and kept pushing it.